package com.leo.client.helloworld;

import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 *
 * @author xuexiaolei
 * @version 2017年08月20日
 */
public class Recv {
    private final static String QUEUE_NAME = "hello";

    public static void main(String[] args) throws IOException, TimeoutException {
        //创建一个连接，并且从连接处获取一个channel，为什么用channel参考"RabbitMQ--整体综述"
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        //声明接收某个队列的消息
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
        //创建一个默认消费者，并在handleDelivery中回调处理消息内容
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                            AMQP.BasicProperties properties, byte[] body)
                            throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };
        //channel绑定队列、消费者，autoAck为true表示一旦收到消息则自动回复确认消息
        channel.basicConsume(QUEUE_NAME, true, consumer);
    }
}
